Question

what is the difference between |-3| and -3 plz explain

Answer 1

the || means absolute value so |-3| = 3

Answer 2

The absolute value sign will multiply all negative numbers by -1 and all positive numbers by +1. Basically every number inside the absolute value sign will be come positive.

Answer 3

if X is on the real number line then think of |X| as the distance of X from the origin, i.e.: